Attend XDA's Second Annual Developer Conference, XDA:DevCon 2014!
5,778,591 Members 36,794 Now Online
XDA Developers Android and Mobile Development Forum

[DISCUSSION] Viper4android

Tip us?
 
AndrasLOHF
Old
(Last edited by AndrasLOHF; 17th April 2014 at 01:50 AM.)
#1  
AndrasLOHF's Avatar
Senior Member - OP
Thanks Meter 674
Posts: 1,409
Join Date: Jan 2013
Default [DISCUSSION] Viper4android





Attached is the latest update zip. The zip will install Viper4Android in priv-app, install extra libs from the main Viper thread, and remove DSP manager.

FAQ:

How do I install Viper???

Go into recovery and flash the zip. It will take care of most of the steps for you. Upon your first launch of the app you will be prompted to install drivers of your choosing then be prompted for a reboot. If coming from a previous version of Viper or you have any other sound mods I fully recommend uninstalling them. Then go into recovery and flash your ROM and the zip in one session.

How do I update the app???

Uninstall the drivers and the apk then go into recovery and flash the newest zip. If you update through the Viper app itself you will wind up with Viper in both priv-app and data app which may cause problems.

Well what drivers do I use???

I recommend Super Audio quality. It uses a higher sampling rate which can be thought of as like a megapixel on a camera. More sample information equals cleaner signal but your files must be equal to or better than the driver sampling rate. I find the highs to be much cleaner and have less distortion with Super Audio. While the prompt warns about extra battery usage, testing with Better Battery Stats for me has shown the effect on battery life to be minimal. You will get higher drain using the Convolver then by choosing a higher quality driver.

Well what is Convolver and how do I use it???

Convolver will play a real time sample of an effect or eq as the sound is being processed. You can get really awesome effects from some of the irs samples but they come at a high price of battery usage. Using this setting doubled battery life usage for me on even conservative kernel governors. To enable you must go to the menu and enable Moderate or Expert UI, then press the button to enable Convolver and press Impulse Response, this will create a ViPER4Android folder on your SD card and within that you will have a folder named Kernel. This is where you will put your Irs Samples you download. You can find links to Irs packs here: http://forum.xda-developers.com/show....php?t=2216193 PS......I've found that not all samples in all the packs work correctly and some will give no sound change.

HAAAAALP! This stoopit mod is killing my battery!!!

No it isn't. Unless you're using Convolver after being warned about it's effect on battery you should see little to no difference in daily use of getting notifications, texts, etc. I get about 6% an hour battery usage during music playback while streaming over bluetooth. If you're using a wired headset it should be less than that. I have never not even once seen Viper pop up on my stock battery stats and have only seen it as <1% on GSam after a full charge. Compatibility mode can be used as a last resort and final option if you're determined to call me a liar. Steps to enable it are outlined below.

Why put the app in priv-app???

This will help to insure that Viper doesn't get killed by Android OOM to keep the sweet sound pumping into your ears!!!

My Viper isn't working!!!

Did you install by flashing the zip??? Is your apk in priv-app??? Do you have any other conflicting sound mods or eq's??? Is Viper enabled and you have installed the drivers and done a reboot???

Some people have luck adding or changing these lines in their build.prop:
##Viper4android


lpa.decode=false
tunnel.decode=false
lpa.use-stagefright=false
lpa.releaselock=false

Also some music players work better by switching to Compatibility Mode. To do that go to menu, click FX Compatible Mode, then click Compatible. Doing this should cause Viper to only modify media players instead of changing sound system wide. Some users say this helps with battery usage as Viper will only process sound when you want it to.

Still stuck? There is tons of helpful information in this thread that you can find by helping yourself click that "Search this thread" function towards the top right of your screen. Still stuck after that....ask away!




Wanted to say thanks to @rootSU and @FlyinGrub for lending a helping hand, @FuMMoD for posting updates to the Viper apk and libs, and @davwman for getting this thread started. And of course the awesome Viper team for creating Viper. I refuse to run my phone without it!

Here is a link to the official thread for more information: http://forum.xda-developers.com/show....php?t=2191223




Download goodies below.
Attached Files
File Type: zip viper_v2.3.3.0.zip - [Click for QR Code] (6.58 MB, 5236 views)
File Type: zip viper_v2.3.2.6.zip - [Click for QR Code] (6.31 MB, 108 views)
File Type: zip viper_v2.3.2.2.zip - [Click for QR Code] (5.71 MB, 88 views)
Nexus 5 PandaTrooper!!!

Get your eargasm herehttp://forum.xda-developers.com/goog...droid-t2543796
The Following 46 Users Say Thank You to AndrasLOHF For This Useful Post: [ Click to Expand ]
 
Radixtrator
Old
#2  
Senior Member
Thanks Meter 70
Posts: 295
Join Date: Jan 2013
Im using it since the start so i cant really comment on How it was before but the sound quality is awesome on my n5. Dunno but i guess The bass is a bit low so i Bad to raise it More than other EQs I've used.. I heard the KitKat DSP is pretty nice as well but as I said I can't comment on that😯

Sent from my Nexus 5 using xda app-developers app
The Following User Says Thank You to Radixtrator For This Useful Post: [ Click to Expand ]
 
Primokorn
Old
#3  
Primokorn's Avatar
Recognized Contributor
Thanks Meter 2046
Posts: 3,856
Join Date: Nov 2012
Location: Annecy

 
DONATE TO ME
Quote:
Originally Posted by davwman View Post
Anyone using it on the awesome nexus 5? If so, any noticeable improvements? Which one to install? And any negative effects?
V4A works well on N5 BUT:
- I sometimes have interferences when listening to my podcast audio files. I need to make some tests to know if this is due to V4A or an audio mod.
- there's no more IRS options atm and this is a shame!
- I'm going to flash OmniROM (again) and I'll only use DSP app for a few days and see what happens.
Nexus 5 | Ask any questionTWRP themesDark XDAGetting started on XDA

LGE Nexus 5 | TWRP Recovery | Mahdi | Uber!!!



Quote:
Searching can take less time than waiting for an answer
The Following User Says Thank You to Primokorn For This Useful Post: [ Click to Expand ]
 
AndrasLOHF
Old
#4  
AndrasLOHF's Avatar
Senior Member - OP
Thanks Meter 674
Posts: 1,409
Join Date: Jan 2013
I won't run a phone without it!!!



Quote:
Originally Posted by Primokorn View Post
V4A works well on N5 BUT:
- I sometimes have interferences when listening to my podcast audio files. I need to make some tests to know if this is due to V4A or an audio mod.
- there's no more IRS options atm and this is a shame!
Been running Convolver with IRS samples since Nov 9th. I did notice that some were taken down but there are still some out there.
Nexus 5 PandaTrooper!!!

Get your eargasm herehttp://forum.xda-developers.com/goog...droid-t2543796
 
dellarius
Old
#5  
Member
Thanks Meter 2
Posts: 35
Join Date: Dec 2009
which mode are you guys using? Battery saving, high q or super quality? Also, it says, that super quality may increase battery drain.. Dont you guys know how much it takes from battery? Thanks
 
pandacookie
Old
#6  
pandacookie's Avatar
Senior Member
Thanks Meter 297
Posts: 1,200
Join Date: Sep 2011
Location: Quincy
I'm using it on high quality. I DO notice a difference. The sound was a lot flatter before V4A. It's much more robust with it.

Sent from my Nexus 5 using Tapatalk
 
AndrasLOHF
Old
#7  
AndrasLOHF's Avatar
Senior Member - OP
Thanks Meter 674
Posts: 1,409
Join Date: Jan 2013
Super quality here. Battery usage during music is fantastic for me even streaming over bluetooth.
Nexus 5 PandaTrooper!!!

Get your eargasm herehttp://forum.xda-developers.com/goog...droid-t2543796
 
tcat007
Old
#8  
tcat007's Avatar
Senior Member
Thanks Meter 261
Posts: 1,279
Join Date: Jul 2011
Location: Austin, TX
Super quality here. Purity Rom + Franco + PA Mini Gapps + Viper = rockin'
Not real noticeable on n5 speakers, but with good headphones it's night and day.... and my Klipsch s4's are not the best, but good enough for my listening. Some good profiles here.
2012 Nexus 7
4.4.4 Purity, M-Kernel, Banks Minimal Gapps
2013 Nexus 5
4.4.4 Purity, Code Blue Kernel, Banks Minimal Gapps
PTEL Paygo
 
davwman
Old
#9  
davwman's Avatar
Senior Member
Thanks Meter 616
Posts: 4,243
Join Date: Nov 2010
Location: Centereach
What version do I download?
 
tcat007
Old
#10  
tcat007's Avatar
Senior Member
Thanks Meter 261
Posts: 1,279
Join Date: Jul 2011
Location: Austin, TX
FX version v2.3.1.3 (Android 2.3~4.4): Mediafire

Quote:
Originally Posted by davwman View Post
What version do I download?
2012 Nexus 7
4.4.4 Purity, M-Kernel, Banks Minimal Gapps
2013 Nexus 5
4.4.4 Purity, Code Blue Kernel, Banks Minimal Gapps
PTEL Paygo

The Following 2 Users Say Thank You to tcat007 For This Useful Post: [ Click to Expand ]
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes